[#6573] memory issue when running fMRI-CPCA

Please log in

State: more information
Open
Date:
2012-05-22 14:08
Priority: more information
3
Submitted By:
Stephen Wilson (sjwilson)
Assigned To: more information
Nobody (None)
Severity: 
normal
Operating System: 
Mac OS X
Browser: 
Firefox 2.0.x
Resolution: 
None
Summary: more information
memory issue when running fMRI-CPCA

Detailed description

To Whom it May Concern:
I am hitting a memory problem in trying to run fMRI-CPCA on a multi-run/multi-subject data set (specs of data set, machine, and matlab pasted below).  I'm running on an cpca_8.3.02_Feb_2012  Specifically, I am having an issue with the creation of GC matrices.  I created and normalized the Z matrix without an issue, and a GZ matrix was created for each subject in the GZsegs folder, but the program freezes while creating the first or second GC matrix each time I try to run analyses.  I can't seem to figure out a way to get the program to pick up where it left off; i.e., it rewrites the GZ matrices each time I run analysis, as opposed to starting with GC.  Is there any way to start with GC, or are there any other suggestions that you have for addressing the memory problem?  Thanks very much for your help.
Sincerely,
Steve Wilson


Z: [576450 x 159450]      718.09 Gb
G: [576450 x 1638]        7.38 Gb
C: [1638 x 159450]        2.04 Gb
CC: [1638 x 1638]       20.96 Mb
U: [1638 x 6]       76.78 Kb
F: [576450 x 6]       27.02 Mb
V: [159450 x 6]       27.02 Mb
 
minimum suggested installed memory: 8 GB

  Model Name:    Mac Pro
  Model Identifier:    MacPro5,1
  Processor Name:    Quad-Core Intel Xeon
  Processor Speed:    2.8 GHz
  Number Of Processors:    1
  Total Number Of Cores:    4
  L2 Cache (per core):    256 KB
  L3 Cache:    8 MB
  Memory:    6 GB

Matlab: 7.10.0.499 (R2010a)
32-bit (maci)

Response

Message

Date: 2012-05-24 15:05
Sender: NITRC Moderator

This tracker is intended for issues related directly to NITRC; I would recommend trying one of the support options at the fMRI-CPCA project at http://www.nitrc.org/projects/fmricpca/

Attached Files:

Name Download
No Files Currently Attached

Changes:

Field Old Value Date By
New Message2012-05-24 15:05moderator